Arabic Parts Calculator
Enter your birth details to calculate all 9 Hermetic and Traditional Lots at once.
What Are Arabic Parts?
Arabic parts (also called Arabic lots or Hermetic lots) are sensitive points in a birth chart calculated from three factors: usually the Ascendant plus two planetary positions. They originated in Hellenistic astrology and were transmitted through medieval Arabic-language texts, which is how they got their modern name.
The 7 Hermetic Lots form a complete system. Each lot is tied to one of the seven visible planets and illuminates a specific dimension of life. Together they offer a panoramic view of your chart that goes beyond ordinary planet placements. The Part of Fortune and Lot of Spirit are the most widely known, but the remaining five lots add crucial detail about desire, obligation, boldness, success, and trials.
The 7 Hermetic Lots at a Glance
Each Hermetic Lot is associated with a classical planet and reveals a distinct life theme. The Part of Fortune (Moon) shows material luck and bodily circumstances. The Lot of Spirit (Sun) shows willpower and conscious purpose. The Lot of Eros (Venus) shows desire, love, and creative passion. The Lot of Necessity(Mercury) shows duty, obligation, and fate's constraints. The Lot of Courage (Mars) shows boldness and initiative. The Lot of Victory (Jupiter) shows success and achievement. The Lot of Nemesis (Saturn) shows tests, hardship, and growth through difficulty.
The formulas for all seven lots depend on whether you have a day chart (Sun above the horizon) or a night chart (Sun below). This calculator detects your sect automatically and applies the correct formula for each lot. Select any individual lot from the results to explore its sign-by-sign and house-by-house interpretation in full.
For the historical context, read how the lots were transmitted from Hellenistic Egypt through medieval Arabic astrology.
Explore the Arabic Parts family
Each lot reveals a specific life theme. Calculate them side by side to build a complete Hellenistic picture of your chart.
Part of Fortune
Luck and material well-being
Lot of Spirit
Willpower and purpose
Lot of Eros
Desire and creative passion
Lot of Victory
Success and achievement
Lot of Nemesis
Tests of fate
Lot of Courage
Boldness and initiative
Lot of Necessity
Duty and constraint
Lot of Marriage
Partnership timing
Lot of Exaltation
Recognition and honor
Lot of Assets
Property and resources
Lot of Manifestation
Bringing ideas into form
More Free Tools
Part of Fortune Calculator
Calculate your Part of Fortune (Lot of Fortune) to find where luck, material well-being, and bodily circumstances play out in your chart.
Lot of Spirit Calculator
Calculate your Lot of Spirit to discover where willpower and purpose play out in your chart.
Lot of Eros Calculator
Calculate your Lot of Eros using the Hellenistic Paulus formula. See your sign, house, and what desire keeps reaching for in your chart.
All nine lots activate at different moments. Replay shows when.
Each lot highlights a different life theme, and each theme has peaked at different moments. Replay maps which lot themes were loudest in which chapters and where convergences are building next.